MATLAB软件在鹤岗地震台地震观测记录中的应用

ANALYSIS AND RESEARCH OF SEISMIC OBSERVATION DISTURBANCE IN HEGANG

随着数字化地震计的应用和发展,数字观测资料中不仅记录了宽频带地震信息,也包含了大量的干扰信号。在实际工作中,对地震信息的分析处理影响很大,有时还会造成地震波形记录不完整或地震信号淹没在干扰信号中,很难再进行深入的分析和应用。因此,利用MATLAB软件设计IIR数字滤波器对不同记录中的干扰波进行滤波器设计,达到消除干扰波的目的。实例表明,此方法在台站应用效果良好。

With the application of digital seismographs, observations not only records the band broadband seismic information, but also contains a large number of interfering signals. In practice, the analysis and processing of information on seismic great, sometimes resulting in seismic waveform records are incomplete or submerged seismic signal interference signal, very difficult to carry out in-depth analysis and applications. Therefore, the use of MATLAB software design IIR digital filter for different recording interference wave filter design, the purpose of eliminating interference waves. Examples show that this method works well.